Shader fixes and legacy shader code

Assets/Shaders/DecalsCommon.cginc

@@ -5,6 +5,7 @@
 #include "Lighting.cginc"
 
 #define CLIP_MARGIN 0.1
+#define EDGE_MARGIN 0.01
 
 // UNIFORM VARIABLES
 // Projection matrix, normal, and tangent vectors
@@ -36,6 +37,7 @@ float4 _Decal_ST;
 #ifdef DECAL_SPECMAP
     sampler2D _SpecMap;
     float4 _SpecMap_ST;
+    // specular color is declared in a unity CGINC for some reason??
     fixed _Shininess;
 #endif //DECAL_SPECMAP
 
@@ -146,7 +148,7 @@ inline float BoundsDist(float3 p, float3 normal, float3 projNormal) {
         return 10 * max(q.x, q.y); // 2D pseudo SDF
     #else
         float dist = max(max(q.x, q.y), q.z); // pseudo SDF
-        float ndist = -dot(normal, projNormal); // SDF to normal
+        float ndist = EDGE_MARGIN - dot(normal, projNormal); // SDF to normal
         return 10 * max(dist, ndist); // return intersection
     #endif
 }

Assets/Shaders/DecalsSurface.cginc

@@ -85,7 +85,6 @@ fixed4 frag_forward(v2f IN) : SV_Target
     // declare data
     DecalSurfaceInput i;
     SurfaceOutput o;
-    fixed4 c = 0;
     
     // setup world-space TBN vectors
     UNITY_EXTRACT_TBN(IN);
@@ -162,10 +161,10 @@ fixed4 frag_forward(v2f IN) : SV_Target
     WorldNormal.z = dot(_unity_tbn_2, o.Normal);
     WorldNormal = normalize(WorldNormal);
     o.Normal = WorldNormal;
-    
+
     //call modified KSP lighting function
-    c += LightingBlinnPhongDecal(o, lightDir, worldViewDir, atten);
-    
+    float4 c = LightingBlinnPhongDecal(o, lightDir, worldViewDir, atten);
+
     // Forward base emission and ambient/vertex lighting
     #ifdef UNITY_PASS_FORWARDBASE
         c.rgb += o.Emission;
@@ -177,7 +176,7 @@ fixed4 frag_forward(v2f IN) : SV_Target
     #ifdef UNITY_PASS_FORWARDADD
         c.rgb *= o.Alpha;
     #endif 
-    
+
     return c;
 }
 

Assets/Shaders/StandardDecal.shader

@@ -1,19 +1,37 @@
-Shader "ConformalDecals/Decal/Standard"
+Shader "ConformalDecals/Decal/Standard"
 {
     Properties
     {
-        [Header(Texture Maps)]
+        [Header(Decal)]
         _Decal("Decal Texture", 2D) = "gray" {}
+        [Toggle(DECAL_SDF_ALPHA)] _Decal_SDF_Alpha ("SDF in Alpha", int) = 0
+
+
+        [Header(Normal)]
+        [Toggle(DECAL_BASE_NORMAL)] _BaseNormal ("Use Base Normal", int) = 0
+        [Toggle(DECAL_BUMPMAP)] _Decal_BumpMap ("Has BumpMap", int) = 0
         _BumpMap("Bump Map", 2D) = "bump" {}
-        
         _EdgeWearStrength("Edge Wear Strength", Range(0,500)) = 100
         _EdgeWearOffset("Edge Wear Offset", Range(0,1)) = 0.1
     
+        [Header(Specularity)]
+        [Toggle(DECAL_SPECMAP)] _Decal_SpecMap ("Has SpecMap", int) = 0
+        _SpecMap ("Specular Map)", 2D) = "black" {}
+        _SpecColor ("_SpecColor", Color) = (0.25, 0.25, 0.25, 1)
+        _Shininess ("Shininess", Range (0.03, 10)) = 0.3
+
+        [Header(Emissive)]
+        [Toggle(DECAL_EMISSIVE)] _Decal_Emissive ("Has Emissive", int) = 0
+        _Emissive("_Emissive", 2D) = "black" {}
+        _EmissiveColor("_EmissiveColor", Color) = (0,0,0,1)
+
         _Cutoff ("Alpha cutoff", Range(0,1)) = 0.5
         _DecalOpacity("Opacity", Range(0,1) ) = 1
         _Background("Background Color", Color) = (0.9,0.9,0.9,0.7)
         
         [Enum(UnityEngine.Rendering.CullMode)] _Cull ("Cull", int) = 2
+        [Toggle] _ZWrite ("ZWrite", Float) = 1.0
+
         [Toggle(DECAL_PREVIEW)] _Preview ("Preview", int) = 0
 
         [Header(Effects)]
@@ -27,12 +45,13 @@ Shader "ConformalDecals/Decal/Standard"
     {
         Tags { "Queue" = "Geometry+100" "IgnoreProjector" = "true" "DisableBatching" = "true"}
         Cull [_Cull]
-        Ztest LEqual  
         
         Pass
         {
             Name "FORWARD"
             Tags { "LightMode" = "ForwardBase" }
+            ZWrite [_ZWrite] 
+            ZTest LEqual  
             Blend SrcAlpha OneMinusSrcAlpha
 
             CGPROGRAM
@@ -57,9 +76,12 @@ Shader "ConformalDecals/Decal/Standard"
         
         Pass
         {
-            Name "FORWARD_ADD"
+            Name "FORWARD"
             Tags { "LightMode" = "ForwardAdd" }
+            ZWrite Off
+            ZTest LEqual  
             Blend One One
+            Offset -1, -1
 
             CGPROGRAM
             #pragma vertex vert_forward

GameData/ConformalDecals/Parts/Generic/decal-generic.cfg

@@ -65,7 +65,12 @@ PART
     scaleRange = 0.1, 4
     scaleMode = AVERAGE
 
-    shader = ConformalDecals/Paint/Specular
+    shader = ConformalDecals/Decal/Standard
+
+    KEYWORD { 
+      name = DECAL_SDF_ALPHA 
+      value = false
+    }
 
     TEXTURE {
       name = _Decal
@@ -108,7 +113,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 128, 2, 128, 112 
         }
       }
@@ -123,7 +128,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 256, 2, 128, 112 
         }
       }
@@ -138,7 +143,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 384, 2, 128, 112 
         }
       }
@@ -153,7 +158,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 690, 4, 330, 118 
         }
       }
@@ -168,7 +173,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 898, 4, 122, 118
         }
       }
@@ -183,7 +188,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 6, 126, 196, 132
         }
       }
@@ -198,7 +203,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 210, 122, 94, 94 
         }
       }
@@ -213,7 +218,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA {
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 8, 262, 192, 70 
         }
       }
@@ -242,7 +247,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 508, 332, 262, 112 
         }
       }
@@ -257,7 +262,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 202, 218, 164, 114 
         }
       }
@@ -272,7 +277,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 366, 218, 164, 114 
         }
       }
@@ -347,7 +352,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 326, 426, 164, 20 
         }
       }
@@ -363,7 +368,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 776, 388, 48, 48 
         }
       }
@@ -378,7 +383,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 328, 456, 48, 48 
         }
       }
@@ -393,7 +398,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 376, 456, 48, 48 
         }
       }
@@ -408,7 +413,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 424, 456, 48, 48 
         }
       }
@@ -423,7 +428,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 472, 456, 48, 48 
         }
       }
@@ -438,7 +443,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 520, 456, 48, 48 
         }
       }
@@ -453,7 +458,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 568, 456, 48, 48 
         }
       }
@@ -468,7 +473,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA {
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 614, 456, 48, 48 
         }
       }
@@ -483,7 +488,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 662, 456, 48, 48 
         }
       }
@@ -498,7 +503,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA {
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 710, 456, 48, 48 
         }
       }
@@ -513,7 +518,7 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/SpecularSDF
+          KEYWORD { name = DECAL_SDF_ALPHA }
           tile = 758, 456, 48, 48 
         }
       }
@@ -528,7 +533,10 @@ PART
       MODULE {
         IDENTIFIER { name = ModuleConformalDecal }
         DATA { 
-          shader = ConformalDecals/Paint/Diffuse
+          TEXTURE {
+            name = _SpecMap
+            remove = true
+          }
 
           tile = 826, 360, 196, 150 
           opacity = 1

GameData/ConformalDecals/Parts/Munar/decal-munar.cfg

@@ -64,7 +64,7 @@ PART
     scaleMode = MINIMUM
     cutoffAdjustable = false
 
-    shader = ConformalDecals/Paint/Specular
+    shader = ConformalDecals/Decal/Standard
 
     TEXTURE {
       name = _Decal

GameData/ConformalDecals/Parts/Semiotic/decal-semiotic.cfg

@@ -62,7 +62,7 @@ PART
     scaleRange = 0.05, 0.5
     cutoffAdjustable = false
 
-    shader = ConformalDecals/Paint/Specular
+    shader = ConformalDecals/Decal/Standard
 
     TEXTURE {
       name = _Decal

GameData/ConformalDecals/Parts/decal-flag.cfg

@@ -53,5 +53,13 @@ PART
 
     defaultDepth = 0.2
     defaultCutoff = 0
+
+    shader = ConformalDecals/Decal/Standard
+
+    TEXTURE {
+      name = _SpecMap
+      textureUrl = ConformalDecals/Assets/Decal-Spec
+      autoScale = true
+    }
   }
 }

Source/ConformalDecals/DecalConfig.cs

@@ -6,8 +6,36 @@ namespace ConformalDecals {
     public static class DecalConfig {
         private static Texture2D    _blankNormal;
         private static List<string> _shaderBlacklist;
-        private static int          _decalLayer         = 31;
-        private static bool         _selectableInFlight = false;
+        private static int          _decalLayer = 31;
+        private static bool         _selectableInFlight;
+
+        private struct LegacyShaderEntry {
+            public string   name;
+            public string[] keywords;
+        }
+
+        private static readonly Dictionary<string, LegacyShaderEntry> LegacyShaderPairs = new Dictionary<string, LegacyShaderEntry>() {
+            ["ConformalDecals/Feature/Bumped"] = new LegacyShaderEntry() {
+                name = "ConformalDecals/Decal/Standard",
+                keywords = new[] {"DECAL_BUMPMAP"}
+            },
+            ["ConformalDecals/Paint/Diffuse"] = new LegacyShaderEntry() {
+                name = "ConformalDecals/Decal/Standard",
+                keywords = new string[] { }
+            },
+            ["ConformalDecals/Paint/Specular"] = new LegacyShaderEntry() {
+                name = "ConformalDecals/Decal/Standard",
+                keywords = new[] {"DECAL_SPECMAP"}
+            },
+            ["ConformalDecals/Paint/DiffuseSDF"] = new LegacyShaderEntry() {
+                name = "ConformalDecals/Decal/Standard",
+                keywords = new[] {"DECAL_SDF_ALPHA"}
+            },
+            ["ConformalDecals/Paint/SpecularSDF"] = new LegacyShaderEntry() {
+                name = "ConformalDecals/Decal/Standard",
+                keywords = new[] {"DECAL_SDF_ALPHA", "DECAL_SPECMAP"}
+            },
+        };
 
         public static Texture2D BlankNormal => _blankNormal;
 
@@ -23,6 +51,18 @@ namespace ConformalDecals {
             return _shaderBlacklist.Contains(shaderName);
         }
 
+        public static bool IsLegacy(string shaderName, out string newShader, out string[] keywords) {
+            if (LegacyShaderPairs.TryGetValue(shaderName, out var entry)) {
+                newShader = entry.name;
+                keywords = entry.keywords;
+                return true;
+            }
+
+            newShader = null;
+            keywords = null;
+            return false;
+        }
+
         private static void ParseConfig(ConfigNode node) {
             foreach (var blacklist in node.GetNodes("SHADERBLACKLIST")) {
                 foreach (var shaderName in blacklist.GetValuesList("shader")) {

Source/ConformalDecals/DecalPropertyIDs.cs

@@ -1,4 +1,5 @@
 using UnityEngine;
+
 // ReSharper disable InconsistentNaming
 
 namespace ConformalDecals {
@@ -12,5 +13,6 @@ namespace ConformalDecals {
         public static readonly int _DecalTangent     = Shader.PropertyToID("_DecalTangent");
         public static readonly int _EdgeWearStrength = Shader.PropertyToID("_EdgeWearStrength");
         public static readonly int _ProjectionMatrix = Shader.PropertyToID("_ProjectionMatrix");
+        public static readonly int _ZWrite           = Shader.PropertyToID("_ZWrite");
     }
 }

Source/ConformalDecals/MaterialProperties/MaterialProperty.cs

@@ -14,12 +14,14 @@ namespace ConformalDecals.MaterialProperties {
         [SerializeField] protected int    _propertyID;
         [SerializeField] protected string _propertyName;
 
+        public abstract void Modify(Material material);
+
         public virtual void ParseNode(ConfigNode node) {
             if (node == null) throw new ArgumentNullException(nameof(node));
 
             PropertyName = node.GetValue("name");
         }
 
-        public abstract void Modify(Material material);
+        public virtual void Remove(Material material) { }
     }
 }

Source/ConformalDecals/MaterialProperties/MaterialPropertyCollection.cs

@@ -30,12 +30,20 @@ namespace ConformalDecals.MaterialProperties {
 
         public Shader DecalShader => _shader;
 
+        public IEnumerable<Material> Materials {
+            get {
+                yield return PreviewMaterial;
+                yield return DecalMaterial;
+            }
+        }
+
         public Material DecalMaterial {
             get {
                 if (_decalMaterial == null) {
                     _decalMaterial = new Material(_shader);
 
                     _decalMaterial.SetInt(DecalPropertyIDs._Cull, (int) CullMode.Off);
+                    _decalMaterial.SetInt(DecalPropertyIDs._ZWrite, 0);
                     _decalMaterial.renderQueue = RenderQueue;
                 }
 
@@ -50,6 +58,7 @@ namespace ConformalDecals.MaterialProperties {
 
                     _previewMaterial.EnableKeyword("DECAL_PREVIEW");
                     _previewMaterial.SetInt(DecalPropertyIDs._Cull, (int) CullMode.Back);
+                    _previewMaterial.SetInt(DecalPropertyIDs._ZWrite, 1);
                 }
 
                 return _previewMaterial;
@@ -142,6 +151,20 @@ namespace ConformalDecals.MaterialProperties {
             }
         }
 
+        public bool RemoveProperty(string propertyName) {
+            if (_materialProperties.TryGetValue(propertyName, out var property)) {
+                foreach (var material in Materials) {
+                    property.Remove(material);
+                }
+                _materialProperties.Remove(propertyName);
+                Destroy(property);
+                
+                return true;
+            }
+
+            return false;
+        }
+
         public MaterialTextureProperty AddTextureProperty(string propertyName, bool isMain = false) {
             var newProperty = AddProperty<MaterialTextureProperty>(propertyName);
             if (isMain) _mainTexture = newProperty;
@@ -164,6 +187,8 @@ namespace ConformalDecals.MaterialProperties {
             string propertyName = "";
             if (!ParseUtil.ParseStringIndirect(ref propertyName, node, "name")) throw new ArgumentException("node has no name");
 
+            if (ParseUtil.ParseBool(node, "remove", true)) RemoveProperty(propertyName);
+
             var newProperty = AddOrGetProperty<T>(propertyName);
             newProperty.ParseNode(node);
 
@@ -178,13 +203,22 @@ namespace ConformalDecals.MaterialProperties {
             if (string.IsNullOrEmpty(shaderName)) {
                 if (_shader == null) {
                     Debug.Log("Using default decal shader");
-                    shaderName = "ConformalDecals/Paint/Diffuse";
+                    shaderName = "ConformalDecals/Decal/Standard";
                 }
                 else {
                     return;
                 }
             }
 
+            if (DecalConfig.IsLegacy(shaderName, out var newShader, out var keywords)) {
+                Debug.LogWarning($"[ConformalDecals] Part is using shader {shaderName}, which has been replaced by {newShader}.");
+                shaderName = newShader;
+                foreach (var keyword in keywords) {
+                    var newProperty = AddOrGetProperty<MaterialKeywordProperty>(keyword);
+                    newProperty.value = true;
+                }
+            }
+
             var shader = Shabby.Shabby.FindShader(shaderName);
 
             if (shader == null) throw new FormatException($"Unable to find specified shader '{shaderName}'");
@@ -239,8 +273,9 @@ namespace ConformalDecals.MaterialProperties {
         }
 
         public void UpdateMaterials() {
-            UpdateMaterial(DecalMaterial);
-            UpdateMaterial(PreviewMaterial);
+            foreach (var material in Materials) {
+                UpdateMaterial(material);
+            }
         }
 
         public void UpdateMaterial(Material material) {

Source/ConformalDecals/MaterialProperties/MaterialTextureProperty.cs

@@ -70,6 +70,13 @@ namespace ConformalDecals.MaterialProperties {
             if (_propertyName != "_Decal") material.EnableKeyword("DECAL" + _propertyName.ToUpper());
         }
 
+        public override void Remove(Material material) {
+            if (material == null) throw new ArgumentNullException(nameof(material));
+            base.Remove(material);
+            
+            if (_propertyName != "_Decal") material.DisableKeyword("DECAL" + _propertyName.ToUpper());
+        }
+
         public void SetScale(Vector2 scale) {
             _scale = scale;
         }

Source/ConformalDecals/ModuleConformalDecal.cs

@@ -19,7 +19,7 @@ namespace ConformalDecals {
 
         // CONFIGURABLE VALUES
 
-        [KSPField] public string shader = "ConformalDecals/Paint/Diffuse";
+        [KSPField] public string shader = "ConformalDecals/Decal/Standard";
 
         [KSPField] public string decalFront     = "Decal-Front";
         [KSPField] public string decalBack      = "Decal-Back";
@@ -170,6 +170,12 @@ namespace ConformalDecals {
 
                 // set shader
                 materialProperties.SetShader(shader);
+                materialProperties.AddOrGetProperty<MaterialKeywordProperty>("DECAL_BASE_NORMAL").value = useBaseNormal;
+
+                // add keyword nodes
+                foreach (var keywordNode in node.GetNodes("KEYWORD")) {
+                    materialProperties.ParseProperty<MaterialKeywordProperty>(keywordNode);
+                }
 
                 // add texture nodes
                 foreach (var textureNode in node.GetNodes("TEXTURE")) {
@@ -199,8 +205,6 @@ namespace ConformalDecals {
                 else if (tileIndex >= 0) {
                     materialProperties.UpdateTile(tileIndex, tileSize);
                 }
-
-
             }
             catch (Exception e) {
                 this.LogException("Exception parsing partmodule", e);
@@ -208,6 +212,10 @@ namespace ConformalDecals {
 
             UpdateMaterials();
 
+            foreach (var keyword in _decalMaterial.shaderKeywords) {
+                this.Log($"keyword: {keyword}");
+            }
+            
             if (HighLogic.LoadedSceneIsEditor) {
                 UpdateTweakables();
             }
@@ -221,7 +229,7 @@ namespace ConformalDecals {
                 opacity = defaultOpacity;
                 cutoff = defaultCutoff;
                 wear = defaultWear;
-                
+
                 // QUEUE PART FOR ICON FIXING IN VAB
                 DecalIconFixer.QueuePart(part.name);
             }
@@ -260,13 +268,13 @@ namespace ConformalDecals {
                     OnAttach();
                 }
             }
-            
+
             // handle flight events
             if (HighLogic.LoadedSceneIsFlight) {
                 GameEvents.onPartWillDie.Add(OnPartWillDie);
-                
+
                 if (part.parent == null) part.explode();
-                
+
                 Part.layerMask |= 1 << DecalConfig.DecalLayer;
                 decalColliderTransform.gameObject.layer = DecalConfig.DecalLayer;
 
@@ -351,7 +359,7 @@ namespace ConformalDecals {
                 part.Die();
             }
         }
-        
+
         protected void OnAttach() {
             if (part.parent == null) {
                 this.LogError("Attach function called but part has no parent!");

changelog.txt

@@ -2,6 +2,12 @@ v0.2.0
 ------
 - New Parts:
  - CDL-3 Surface Base Decal: A set of conformal decals based on the symbols from the movie Moon designed by Gavin Rothery
+- Changes:
+ - New "KEYWORD" material modifier, allowing for shader features to be enabled and disabled.
+ - material modifiers can now be removed in variants by setting `remove = true` inside them.
+ - Unified all shaders into a single "Standard" shader with variants supporting any combination of bump, specular and emissive maps, plus SDF alphas.
+  - Old shaders are remapped to Standard shader plus keywords automatically.
+  - New SDF-based antialiasing for when decals extend to their borders, i.e. on opaque flags.
 - Fixes:
  - Fixed WIDTH and HEIGHT scale modes being flipped
  - Removed debug log statements